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From: Conor Dooley <conor@kernel.org>
To: soc@kernel.org
Cc: conor@kernel.org, Conor Dooley <conor.dooley@microchip.com>,
	Arnd Bergmann <arnd@arndb.de>,
	Daire McNamara <daire.mcnamara@microchip.com>,
	Rob Herring <robh+dt@kernel.org>,
	Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>,
	Moritz Fischer <mdf@kernel.org>, Wu Hao <hao.wu@intel.com>,
	Xu Yilun <yilun.xu@intel.com>, Tom Rix <trix@redhat.com>,
	Russ Weight <russell.h.weight@intel.com>,
	linux-riscv@lists.infradead.org, devicetree@vger.kernel.org,
	linux-kernel@vger.kernel.org, linux-fpga@vger.kernel.org,
	Rob Herring <robh@kernel.org>
Subject: [PATCH v3 1/6] dt-bindings: soc: microchip: add a property for system controller flash
Date: Fri, 20 Oct 2023 14:18:39 +0100	[thread overview]
Message-ID: <20231020-womanless-doorstop-758bb24e3c8d@spud> (raw)
In-Reply-To: <20231020-agreeably-filing-3d48708e6262@spud>

From: Conor Dooley <conor.dooley@microchip.com>

The system controller "shares" a SPI flash device with a QSPI controller
in the MSS. This flash is used to store FPGA bitstreams & other
metadata. IAP and Auto Upgrade both write images to this flash that the
System Controller will use to re-program the FPGA.

Add a phandle property signifying which flash device is connected to the
system controller.

Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Conor Dooley <conor.dooley@microchip.com>
---
 .../soc/microchip/microchip,mpfs-sys-controller.yaml   | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/Documentation/devicetree/bindings/soc/microchip/microchip,mpfs-sys-controller.yaml b/Documentation/devicetree/bindings/soc/microchip/microchip,mpfs-sys-controller.yaml
index 365a9fed5914..a3fa04f3a1bd 100644
--- a/Documentation/devicetree/bindings/soc/microchip/microchip,mpfs-sys-controller.yaml
+++ b/Documentation/devicetree/bindings/soc/microchip/microchip,mpfs-sys-controller.yaml
@@ -26,6 +26,16 @@ properties:
   compatible:
     const: microchip,mpfs-sys-controller
 
+  microchip,bitstream-flash:
+    $ref: /schemas/types.yaml#/definitions/phandle
+    description:
+      The SPI flash connected to the system controller's QSPI controller.
+      The system controller may retrieve FPGA bitstreams from this flash to
+      perform In-Application Programming (IAP) or during device initialisation
+      for Auto Update. The MSS and system controller have separate QSPI
+      controllers and this flash is connected to both. Software running in the
+      MSS can write bitstreams to the flash.
+
 required:
   - compatible
   - mboxes
-- 
2.39.2


WARNING: multiple messages have this Message-ID (diff)
From: Conor Dooley <conor@kernel.org>
To: soc@kernel.org
Cc: conor@kernel.org, Conor Dooley <conor.dooley@microchip.com>,
	Arnd Bergmann <arnd@arndb.de>,
	Daire McNamara <daire.mcnamara@microchip.com>,
	Rob Herring <robh+dt@kernel.org>,
	Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>,
	Moritz Fischer <mdf@kernel.org>, Wu Hao <hao.wu@intel.com>,
	Xu Yilun <yilun.xu@intel.com>, Tom Rix <trix@redhat.com>,
	Russ Weight <russell.h.weight@intel.com>,
	linux-riscv@lists.infradead.org, devicetree@vger.kernel.org,
	linux-kernel@vger.kernel.org, linux-fpga@vger.kernel.org,
	Rob Herring <robh@kernel.org>
Subject: [PATCH v3 1/6] dt-bindings: soc: microchip: add a property for system controller flash
Date: Fri, 20 Oct 2023 14:18:39 +0100	[thread overview]
Message-ID: <20231020-womanless-doorstop-758bb24e3c8d@spud> (raw)
In-Reply-To: <20231020-agreeably-filing-3d48708e6262@spud>

From: Conor Dooley <conor.dooley@microchip.com>

The system controller "shares" a SPI flash device with a QSPI controller
in the MSS. This flash is used to store FPGA bitstreams & other
metadata. IAP and Auto Upgrade both write images to this flash that the
System Controller will use to re-program the FPGA.

Add a phandle property signifying which flash device is connected to the
system controller.

Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Conor Dooley <conor.dooley@microchip.com>
---
 .../soc/microchip/microchip,mpfs-sys-controller.yaml   | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/Documentation/devicetree/bindings/soc/microchip/microchip,mpfs-sys-controller.yaml b/Documentation/devicetree/bindings/soc/microchip/microchip,mpfs-sys-controller.yaml
index 365a9fed5914..a3fa04f3a1bd 100644
--- a/Documentation/devicetree/bindings/soc/microchip/microchip,mpfs-sys-controller.yaml
+++ b/Documentation/devicetree/bindings/soc/microchip/microchip,mpfs-sys-controller.yaml
@@ -26,6 +26,16 @@ properties:
   compatible:
     const: microchip,mpfs-sys-controller
 
+  microchip,bitstream-flash:
+    $ref: /schemas/types.yaml#/definitions/phandle
+    description:
+      The SPI flash connected to the system controller's QSPI controller.
+      The system controller may retrieve FPGA bitstreams from this flash to
+      perform In-Application Programming (IAP) or during device initialisation
+      for Auto Update. The MSS and system controller have separate QSPI
+      controllers and this flash is connected to both. Software running in the
+      MSS can write bitstreams to the flash.
+
 required:
   - compatible
   - mboxes
-- 
2.39.2


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  reply	other threads:[~2023-10-20 13:19 UTC|newest]

Thread overview: 19+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-10-20 13:18 [PATCH v3 0/6] PolarFire SoC Auto Update Support Conor Dooley
2023-10-20 13:18 ` Conor Dooley
2023-10-20 13:18 ` Conor Dooley [this message]
2023-10-20 13:18   ` [PATCH v3 1/6] dt-bindings: soc: microchip: add a property for system controller flash Conor Dooley
2023-10-20 13:18 ` [PATCH v3 2/6] soc: microchip: mpfs: enable access to the system controller's flash Conor Dooley
2023-10-20 13:18   ` Conor Dooley
2023-10-20 13:18 ` [PATCH v3 3/6] soc: microchip: mpfs: print service status in warning message Conor Dooley
2023-10-20 13:18   ` Conor Dooley
2023-10-20 13:18 ` [PATCH v3 4/6] soc: microchip: mpfs: add auto-update subdev to system controller Conor Dooley
2023-10-20 13:18   ` Conor Dooley
2023-10-20 13:18 ` [PATCH v3 5/6] firmware: microchip: add PolarFire SoC Auto Update support Conor Dooley
2023-10-20 13:18   ` Conor Dooley
2023-10-20 13:18 ` [PATCH v3 6/6] riscv: dts: microchip: add the mpfs' system controller qspi & associated flash Conor Dooley
2023-10-20 13:18   ` Conor Dooley
2023-10-25 12:22   ` Conor Dooley
2023-10-25 12:22     ` Conor Dooley
2023-12-06 12:25 ` [PATCH v3 0/6] PolarFire SoC Auto Update Support Conor Dooley
2023-12-06 12:25   ` Conor Dooley
2023-12-21 17:41 ` patchwork-bot+linux-soc

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